EP1308222B1 - Tube welding device - Google Patents

Tube welding device Download PDF

Info

Publication number
EP1308222B1
EP1308222B1 EP02020730A EP02020730A EP1308222B1 EP 1308222 B1 EP1308222 B1 EP 1308222B1 EP 02020730 A EP02020730 A EP 02020730A EP 02020730 A EP02020730 A EP 02020730A EP 1308222 B1 EP1308222 B1 EP 1308222B1
Authority
EP
European Patent Office
Prior art keywords
carriage
pipe
pressure roller
welding apparatus
tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02020730A
Other languages
German (de)
French (fr)
Other versions
EP1308222A3 (en
EP1308222A2 (en
Inventor
Bernhard Heimann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Group GmbH
Original Assignee
SMS Meer GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SMS Meer GmbH filed Critical SMS Meer GmbH
Publication of EP1308222A2 publication Critical patent/EP1308222A2/en
Publication of EP1308222A3 publication Critical patent/EP1308222A3/en
Application granted granted Critical
Publication of EP1308222B1 publication Critical patent/EP1308222B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams

Definitions

  • the invention relates to a pipe welding apparatus, with the features specified in the preamble of the independent claim, as by the JP 60231526 A known.
  • a large part of the existing metal pipes is produced by continuous longitudinal seam welding.
  • a tape is unwound from a coil, formed in several roll stands to a round slotted tube and welded.
  • the strip edges are heated to welding temperature and compressed in a welding roll stand so that they weld together.
  • the welding roll stand has to meet a number of requirements for producing a high quality pipe.
  • the pipe itself must be guided very precisely to prevent deviations from the ideal pipe axis. Even a small deviation can cause a displacement of the strip edges in the region of the weld zone, which leads to significant quality losses.
  • the strip edges may only be compressed so far, ie compressed, that only a minimum amount of material is forced out of the weld. If this quantity is too large, the result is a correspondingly high loss of material, because the resulting so-called burr on the weld must be removed again in a further work step. on the other hand It must be ensured that the weld seam is produced precisely over the entire cross-section without any defects and that the material is welded through.
  • a pipe welding apparatus of the type mentioned above therefore has to have a variety of options for setting and guiding the pressure rollers for producing a tube of high quality.
  • the DE 32 12 365 C2 discloses an arrangement of three rollers with which the tube formed from the metal strip is guided almost over the entire circumference.
  • the lower two rollers are inclined here, the upper roller is formed divided.
  • the resulting from the upper roller two rolling discs can be pivoted to each other by an adjustable angle.
  • the width of the center groove between the two discs of the upper roller can be adjusted continuously in dependence on the wall thickness of the molded tube.
  • the above requirements can not be fully satisfied even with such an arrangement.
  • the welding roller frame has two horizontally arranged lateral pressure rollers and a Pair of upper pressure rollers on. All roller axes lie in one plane.
  • the upper pressure rollers can be moved synchronously horizontally both individually and synchronously vertically and / or in the same direction and in opposite directions, in order to bring the upper pressure rollers into the required position.
  • the upper pressure rollers are mounted for this purpose in carriages with vertical and horizontal guides, and the adjustment is carried out by threaded spindles.
  • the invention is therefore based on the object , a pipe welding apparatus of the type mentioned so that the above requirements for the production of longitudinal seam tubes can be met with high quality.
  • first carriage and the second carriage is associated with at least one horizontal guide and at least one vertical guide. This results in a simple construction for horizontal and vertical movement of both carriages.
  • the movement of the carriage is carried out with linear actuators, for vertical adjustment of the first carriage with advantage two parallel threaded spindle nut systems are provided, whereby a tilt-free guidance of large elements is ensured, which is driven by two gear, the be driven by a common motor. It can be arranged between the two transmissions, preferably worm gear, a clutch.
  • adjustment and locking means can be provided with which the respective elements can be adjusted to each other in position and set.
  • This configuration is preferably provided only between the first carriage and the second carriage, wherein the adjustment and locking the two carriages in the vertical direction to each other set in position and set.
  • a position adjusting and locking means is suitable e.g. an adjustable wedge; this can be connected to displacement means, so that a simple positioning of the wedge is possible.
  • the displacement means may have a screw.
  • FIGURE schematically shows a tube welding device with a view in the direction of the longitudinal axis of the manufactured tube.
  • a pipe 2 has been formed from a flat sheet metal strip, resulting in a seam 4 on the tube 2, which is welded to the device 1.
  • the tube 2 runs continuously in the direction of the longitudinal axis 3 of the tube 2 through the device 1.
  • the pipe welding device 1 has a base plate 5, which is arranged stationary. On the base plate 5, a first carriage 6 is arranged. This is about two horizontal linear guides 16 and two vertical linear guides 17 in two mutually orthogonal directions (horizontal and vertical) relative to the base plate 5 movable.
  • linear movement elements are provided, namely a threaded nut-nut system 20 for the horizontal displacement of the first carriage 6 relative to the base plate 5 and a threaded nut-nut system 21 for the corresponding vertical displacement.
  • linear actuators 20, 21 are shown only very schematically, because this is well-known in the art elements. Only with respect to the threaded spindle nut system 21 is sketched somewhat more detailed that here two parallel threaded spindles 21 are provided which move the carriage 6 relative to the base plate 5 vertically. Tilting of the first carriage 6 is thereby avoided.
  • the drive of the spindles 21 takes place by two gear 24 and 25, which are connected to each other via a coupling 26.
  • the drive itself is done by a motor 23 which drives both gears 24 and 25.
  • a first pressure roller 7 is arranged in the lower region of the first carriage 6, a first pressure roller 7 is arranged. Their axis 10 is arranged rotated relative to the horizontal by a pivot angle ⁇ . Thus, the first pressure roller 7 rolls in the region of the seam 4 of the tube 2 to the left of the seam 4 on the tube 2, whereby an accurate guidance of this angle segment of the tube 2 is ensured.
  • first carriage 6 With the first carriage 6 two horizontal guides 18 and two vertical guides 19 are connected, via which a second carriage 8 is guided relative to the first carriage 6 movable.
  • second carriage 8 On the second carriage 8 - analogous to the first pressure roller 7 - a second pressure roller 9 is arranged, which leads to the right next to the seam 4 of this adjacent angular segment of the tube 2 exactly.
  • the axis 11 of the second pressure roller 9 is pivoted mirror image to the axis 10 of the first pressure roller 7 by the angle ⁇ .
  • the movement of the second carriage 8 relative to the first carriage 6 is effected - as far as the horizontal movement is concerned - via a threaded nut-nut system 22, the same applies what was done in connection with the systems 20 and 21 above.
  • the vertical adjustment and locking of the second carriage 8 relative to the first carriage 6 by means of a wedge 27, which communicates with only very schematically sketched displacement means 28 in connection.
  • horizontal displacement of the wedge eg by means of a screw, not shown
  • the relative vertical position between the first and second slide 6 and 8 can be adjusted and locked.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The pipe welding machine (1) welds the edges of a folded metal pipe and has a fixed base plate (5) and a carriage (6) moving at right angles to the pipe travel direction to carry a pressure roller (7). There is a second carriage (8) carrying a second pressure roller (9), both rollers guiding the pipe. the second carriage is guided on the first. The axes of both rollers are in the same plane.

Description

Die Erfindung betrifft eine Rohrschweißvorrichtung, mit den im Oberbegriff des unabhängigen Anspruchs angegebenen Merkmalen, wie durch die JP 60231526 A bekanntgeworden.The invention relates to a pipe welding apparatus, with the features specified in the preamble of the independent claim, as by the JP 60231526 A known.

Ein großer Teil der aus Metall bestehenden Rohre wird durch kontinuierliches Längsnaht-Schweißen hergestellt. Dazu wird ein Band von einem Coil abgewickelt, in mehreren Walzengerüsten zu einem runden Schlitzrohr eingeformt und verschweißt. Zum Zwecke des Zusammenfügens werden die Bandkanten auf Schweißtemperatur erwärmt und in einem Schweißrollengerüst so zusammengedrückt, dass sie miteinander verschweißen.A large part of the existing metal pipes is produced by continuous longitudinal seam welding. For this purpose, a tape is unwound from a coil, formed in several roll stands to a round slotted tube and welded. For the purpose of assembly, the strip edges are heated to welding temperature and compressed in a welding roll stand so that they weld together.

Das Schweißrollengerüst hat zur Fertigung eines Rohres hoher Qualität eine Reihe von Anforderungen zu erfüllen.The welding roll stand has to meet a number of requirements for producing a high quality pipe.

Zunächst muss das Rohr selbst sehr genau geführt werden, um Abweichungen von der idealen Rohrlängsachse zu verhindern. Eine auch nur geringe Abweichung kann einen Versatz der Bandkanten im Bereich der Schweißzone bewirken, was zu erheblichen Qualitätseinbußen führt.First, the pipe itself must be guided very precisely to prevent deviations from the ideal pipe axis. Even a small deviation can cause a displacement of the strip edges in the region of the weld zone, which leads to significant quality losses.

Weiterhin dürfen die Bandkanten nur so weit zusammengedrückt, d. h. gestaucht werden, dass nur eine geringstmögliche Materialmenge aus der Schweißnaht herausgedrückt wird. Ist diese Menge nämlich zu groß, ergibt sich ein entsprechend hoher Materialverlust, weil der sich ergebende sogenannte Grat auf der Schweißnaht in einem weiteren Arbeitsschritt wieder entfernt werden muß. Andererseits muss sichergestellt sein, dass die Schweißnaht ohne Fehler über den gesamten Querschnitt präzise hergestellt, das Material also durchgeschweißt wird.Furthermore, the strip edges may only be compressed so far, ie compressed, that only a minimum amount of material is forced out of the weld. If this quantity is too large, the result is a correspondingly high loss of material, because the resulting so-called burr on the weld must be removed again in a further work step. on the other hand It must be ensured that the weld seam is produced precisely over the entire cross-section without any defects and that the material is welded through.

Für die versatzfreie Führung der Bandkanten kommt erschwerend hinzu, dass unterschiedliche Werkstoffe unterschiedliche Auffederungseigenschaften haben, bei gleichem Rohraußendurchmesser unterschiedliche Wanddicken eingeformt werden müssen und das Bandmaterial ferner Abweichungen vom Sollmaß aufweisen kann (z. B. Wanddickenschwankungen oder eine Säbelform in Längsrichtung).For the offset-free guidance of the strip edges is made more difficult that different materials have different Auffederungseigenschaften, different wall thicknesses must be molded with the same pipe outside diameter and the strip material may further deviations from the nominal size (eg., Wall thickness variations or a saber shape in the longitudinal direction).

Eine Rohrschweißvorrichtung der eingangs genannten Art muss daher zur Herstellung eines Rohres hoher Qualität vielfältige Möglichkeiten zur Einstellung und Führung der Druckrollen aufweisen.A pipe welding apparatus of the type mentioned above therefore has to have a variety of options for setting and guiding the pressure rollers for producing a tube of high quality.

Aus der DE-OS 19 23 241 ist eine Vorrichtung zum kontinuierlichen Längsnahtschweißen von Rohren bekannt. Die dort offenbarte Anordnung verzichtet jedoch auf spezielle Maßnahmen zur Erfüllung der oben genannten Forderungen; damit ist die Qualität der auf dieser Vorrichtung herstellbaren Rohre begrenzt.From the DE-OS 19 23 241 an apparatus for continuous longitudinal seam welding of pipes is known. However, the arrangement disclosed there dispenses with special measures for the fulfillment of the above-mentioned requirements; this limits the quality of the tubes that can be produced on this device.

Die DE 32 12 365 C2 offenbart eine Anordnung von drei Walzen, mit denen das aus dem Metallband geformte Rohr fast über den gesamten Umfang geführt wird. Die unteren beiden Walzen sind hier schräg gestellt, die obere Walze ist geteilt ausgebildet. Die sich aus der oberen Walze ergebenden beiden Walzscheiben können zueinander um einen einstellbaren Winkel verschwenkt werden. Damit kann die Breite der Mittelnut zwischen den beiden Walzscheiben der oberen Walze in Abhängigkeit von der Wanddicke des geformten Rohres stufenlos eingestellt werden. Allerdings können die obigen Forderungen auch mit einer solchen Anordnung nicht voll befriedigt werden.The DE 32 12 365 C2 discloses an arrangement of three rollers with which the tube formed from the metal strip is guided almost over the entire circumference. The lower two rollers are inclined here, the upper roller is formed divided. The resulting from the upper roller two rolling discs can be pivoted to each other by an adjustable angle. Thus, the width of the center groove between the two discs of the upper roller can be adjusted continuously in dependence on the wall thickness of the molded tube. However, the above requirements can not be fully satisfied even with such an arrangement.

Bei einer aus der DE-AS 12 89 814 bekannten Rohrschweißvorrichtung weist das Schweißrollengerüst zwei waagerecht angeordnete seitliche Druckrollen sowie ein Paar obere Druckrollen auf. Alle Rollenachsen liegen in einer Ebene. Die oberen Druckrollen können sowohl einzeln als auch synchron senkrecht und/oder gleich- und gegensinnig synchron waagerecht bewegt werden, um die oberen Druckrollen in die benötigte Position zu bringen. Die oberen Druckrollen sind hierzu in Schlitten mit senkrechten und waagerechten Führungen gelagert, und die Verstellung erfolgt durch Gewindespindeln.At one of the DE-AS 12 89 814 known welding device, the welding roller frame has two horizontally arranged lateral pressure rollers and a Pair of upper pressure rollers on. All roller axes lie in one plane. The upper pressure rollers can be moved synchronously horizontally both individually and synchronously vertically and / or in the same direction and in opposite directions, in order to bring the upper pressure rollers into the required position. The upper pressure rollers are mounted for this purpose in carriages with vertical and horizontal guides, and the adjustment is carried out by threaded spindles.

All diese vorbekannten Rohrschweißvorrichtungen sind jedoch nicht in ausreichender Weise so verstellbar, dass die oben genannten Anforderungen vollumfänglich erfüllt werden könnten. Weiterhin kann bei den bekannten Ausführungen eine Verstellung nur in recht aufwendiger Weise erfolgen, indem von Hand und nach Lösen von Kupplungen Betätigungselemente bedient werden. Hierdurch ist es nicht möglich, schnell auf sich ändernde Verhältnisse am durchlaufenden Rohr zu reagieren.However, all of these known pipe welding devices are not sufficiently adjustable so that the above requirements could be fully met. Furthermore, in the known embodiments, an adjustment can be made only in quite a complicated manner by actuators are operated by hand and after releasing couplings. As a result, it is not possible to react quickly to changing conditions on the continuous pipe.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Rohrschweißvorrichtung der eingangs genannten Art so weiterzuentwickeln, dass die genannten Anforderungen an die Herstellung von Längsnaht-Rohren mit hoher Qualität erfüllt werden können.The invention is therefore based on the object , a pipe welding apparatus of the type mentioned so that the above requirements for the production of longitudinal seam tubes can be met with high quality.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass dem ersten Schlitten und dem zweite Schlitten mindestens eine horizontale Führung und mindestens eine vertikale Führung zugeordnet ist. Hierdurch ergibt sich eine einfache Bauweise zur horizontalen und vertikalen Bewegung beider Schlitten.This object is achieved in that the first carriage and the second carriage is associated with at least one horizontal guide and at least one vertical guide. This results in a simple construction for horizontal and vertical movement of both carriages.

Die Bewegung der Schlitten erfolgt mit Linearaktuatoren, wobei zur vertikalen Verstellung des ersten Schlittens mit Vorteil zwei parallel angeordnete Gewindespindel-Mutter-Systeme vorgesehen sind, wodurch eine verkantungsfreie Führung großer Elemente gewährleistet ist, deren Antrieb durch zwei Getriebe erfolgt, die von einem gemeinsamen Motor angetrieben werden. Dabei kann zwischen den beiden Getrieben, bevorzugt Schneckengetriebe, eine Kupplung angeordnet sein.The movement of the carriage is carried out with linear actuators, for vertical adjustment of the first carriage with advantage two parallel threaded spindle nut systems are provided, whereby a tilt-free guidance of large elements is ensured, which is driven by two gear, the be driven by a common motor. It can be arranged between the two transmissions, preferably worm gear, a clutch.

Zwischen Grundplatte und erstem Schlitten bzw. zwischen erstem Schlitten und zweitem Schlitten lassen sich Einstell- und Arretiermittel vorsehen, mit denen die jeweiligen Elemente zueinander in ihrer Position eingestellt und festgelegt werden können. Diese Ausgestaltung ist bevorzugt nur zwischen erstem Schlitten und zweitem Schlitten vorgesehen, wobei die Einstell- und Arretiermittel die beiden Schlitten in vertikaler Richtung zueinander in ihrer Position einstellen und festlegen. Als Positions-Einstell- und Arretiermittel eignet sich z.B. ein verstellbarer Keil; dieser kann mit Verschiebemitteln verbunden sein, so dass eine einfache Positionierung des Keils möglich ist. Die Verschiebemittel können dabei eine Schraube aufweisen.Between the base plate and the first carriage or between the first carriage and the second carriage adjustment and locking means can be provided with which the respective elements can be adjusted to each other in position and set. This configuration is preferably provided only between the first carriage and the second carriage, wherein the adjustment and locking the two carriages in the vertical direction to each other set in position and set. As a position adjusting and locking means is suitable e.g. an adjustable wedge; this can be connected to displacement means, so that a simple positioning of the wedge is possible. The displacement means may have a screw.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Die einzige Figur zeigt schematisch eine Rohrschweißvorrichtung mit Blick in Richtung der Längsachse des gefertigten Rohres.In the drawing, an embodiment of the invention is shown. The single FIGURE schematically shows a tube welding device with a view in the direction of the longitudinal axis of the manufactured tube.

In einer Rohrschweißvorrichtung 1 ist ein Rohr 2 aus einem ebenen Blechstreifen geformt worden, wobei sich eine Nahtstelle 4 am Rohr 2 ergibt, die auf der Vorrichtung 1 verschweißt wird. Das Rohr 2 läuft beim Schweißvorgang kontinuierlich in Richtung der Längsachse 3 des Rohres 2 durch die Vorrichtung 1 hindurch.In a pipe welding apparatus 1, a pipe 2 has been formed from a flat sheet metal strip, resulting in a seam 4 on the tube 2, which is welded to the device 1. During the welding process, the tube 2 runs continuously in the direction of the longitudinal axis 3 of the tube 2 through the device 1.

Die Rohrschweißvorrichtung 1 weist eine Grundplatte 5 auf, die ortsfest angeordnet ist. Auf der Grundplatte 5 ist ein erster Schlitten 6 angeordnet. Dieser ist über zwei horizontale Linearführungen 16 und zwei vertikale Linearführungen 17 in zwei zueinander orthogonale Richtungen (Horizontale und Vertikale) relativ zur Grundplatte 5 bewegbar.The pipe welding device 1 has a base plate 5, which is arranged stationary. On the base plate 5, a first carriage 6 is arranged. This is about two horizontal linear guides 16 and two vertical linear guides 17 in two mutually orthogonal directions (horizontal and vertical) relative to the base plate 5 movable.

Hierfür sind lineare Bewegungselemente (Linearaktuatoren) vorgesehen, nämlich ein Gewindespindel-Mutter-System 20 für die horizontale Verschiebung des ersten Schlittens 6 relativ zur Grundplatte 5 sowie ein Gewindespindel-Mutter-System 21 für die entsprechende vertikale Verschiebung. Diese Linearaktuatoren 20, 21 sind nur sehr schematisch dargestellt, weil es sich hierbei um im Stand der Technik hinlänglich bekannte Elemente handelt. Lediglich bezüglich des Gewindespindel-Mutter-Systems 21 ist etwas detaillierter skizziert, dass hier zwei parallele Gewindespindeln 21 vorgesehen sind, die den Schlitten 6 relativ zur Grundplatte 5 vertikal bewegen. Ein Verkanten des ersten Schlittens 6 wird dadurch vermieden. Der Antrieb der Spindeln 21 erfolgt durch zwei Getriebe 24 und 25, die über eine Kupplung 26 miteinander verbunden sind. Der Antrieb selbst erfolgt durch einen Motor 23, der beide Getriebe 24 und 25 antreibt.For this purpose, linear movement elements (linear actuators) are provided, namely a threaded nut-nut system 20 for the horizontal displacement of the first carriage 6 relative to the base plate 5 and a threaded nut-nut system 21 for the corresponding vertical displacement. These linear actuators 20, 21 are shown only very schematically, because this is well-known in the art elements. Only with respect to the threaded spindle nut system 21 is sketched somewhat more detailed that here two parallel threaded spindles 21 are provided which move the carriage 6 relative to the base plate 5 vertically. Tilting of the first carriage 6 is thereby avoided. The drive of the spindles 21 takes place by two gear 24 and 25, which are connected to each other via a coupling 26. The drive itself is done by a motor 23 which drives both gears 24 and 25.

Im unteren Bereich des ersten Schlittens 6 ist eine erste Druckrolle 7 angeordnet. Deren Achse 10 ist gegenüber der Horizontalen um einen Schwenkwinkel α gedreht angeordnet. Damit rollt die erste Druckrolle 7 im Bereich der Nahtstelle 4 des Rohres 2 links von der Nahtstelle 4 am Rohr 2 ab, womit eine genaue Führung dieses Winkelsegments des Rohres 2 sichergestellt ist.In the lower region of the first carriage 6, a first pressure roller 7 is arranged. Their axis 10 is arranged rotated relative to the horizontal by a pivot angle α. Thus, the first pressure roller 7 rolls in the region of the seam 4 of the tube 2 to the left of the seam 4 on the tube 2, whereby an accurate guidance of this angle segment of the tube 2 is ensured.

Mit dem ersten Schlitten 6 sind zwei horizontale Führungen 18 und zwei vertikale Führungen 19 verbunden, über die ein zweiter Schlitten 8 relativ zum ersten Schlitten 6 bewegbar geführt wird. Am zweiten Schlitten 8 ist - analog zur ersten Druckrolle 7 - eine zweite Druckrolle 9 angeordnet, die rechts neben der Nahtstelle 4 das dieser benachbarte Winkelsegment des Rohres 2 exakt führt. Die Achse 11 der zweiten Druckrolle 9 ist spiegelbildlich zur Achse 10 der ersten Druckrolle 7 um den Winkel α geschwenkt.With the first carriage 6 two horizontal guides 18 and two vertical guides 19 are connected, via which a second carriage 8 is guided relative to the first carriage 6 movable. On the second carriage 8 - analogous to the first pressure roller 7 - a second pressure roller 9 is arranged, which leads to the right next to the seam 4 of this adjacent angular segment of the tube 2 exactly. The axis 11 of the second pressure roller 9 is pivoted mirror image to the axis 10 of the first pressure roller 7 by the angle α.

Eine insgesamt genaue und optimale Führung des gesamten Rohrumfangs wird durch zwei weitere Druckrollen 12 und 13 erreicht, wobei letztere im Ausführungsbeispiel das Rohr jeweils über einen Umfangsabschnitt von ca. 150° führen. Die weiteren Druckrollen 12 und 13 weisen Achsen 14 bzw. 15 auf, die vertikal ausgerichtet sind. Damit wird das Rohr 2 - bis auf die Nahtstelle 4 selber - weitgehend umfasst und genau geführt. Die Achsen 10 und 11 der ersten bzw. zweiten Druckrolle 7 bzw. 9 sowie die Achsen 14 und 15 der weiteren Druckrollen 12 und 13 liegen hierbei in einer gemeinsamen Ebene.An overall accurate and optimal guidance of the entire circumference of the tube is achieved by two further pressure rollers 12 and 13, the latter in the exemplary embodiment, the tube each lead over a peripheral portion of about 150 °. The further pressure rollers 12 and 13 have axes 14 and 15, which are vertically aligned. Thus, the tube 2 - largely to the interface 4 itself - largely encompassed and guided exactly. The axes 10 and 11 of the first and second pressure roller 7 and 9 and the axes 14 and 15 of the further pressure rollers 12 and 13 are in this case in a common plane.

Die Bewegung des zweiten Schlittens 8 relativ zum ersten Schlitten 6 wird - was die horizontale Bewegung anbelangt - über ein Gewindespindel-Mutter-System 22 bewerkstelligt, wobei dasselbe gilt, was im Zusammenhang mit den Systemen 20 und 21 oben ausgeführt wurde. Die vertikale Einstellung und Arretierung des zweiten Schlittens 8 relativ zum ersten Schlitten 6 erfolgt mittels eines Keils 27, der mit nur sehr schematisch skizzierten Verschiebemitteln 28 in Verbindung steht. Durch horizontale Verschiebung des Keils (z.B. mittels einer nicht dargestellten Schraube) kann die relative vertikale Position zwischen erstem und zweitem Schlitten 6 bzw. 8 eingestellt und arretiert werden.The movement of the second carriage 8 relative to the first carriage 6 is effected - as far as the horizontal movement is concerned - via a threaded nut-nut system 22, the same applies what was done in connection with the systems 20 and 21 above. The vertical adjustment and locking of the second carriage 8 relative to the first carriage 6 by means of a wedge 27, which communicates with only very schematically sketched displacement means 28 in connection. By horizontal displacement of the wedge (eg by means of a screw, not shown), the relative vertical position between the first and second slide 6 and 8 can be adjusted and locked.

Mit Hilfe der vorgeschlagenen Vorrichtung ist es möglich, auf der Basis von am durchlaufenden Rohr 2 sensorisch ermittelten Werten die erste und zweite Druckrolle 7 bzw. 9 prozessnah, schnell und direkt in jede beliebige Stellung zum Rohr 2 und zueinander zu bringen, wodurch Abweichungen in der Geometrie des Rohres ausgeglichen werden können. Die Rohrqualität wird dadurch wesentlich verbessert.With the help of the proposed device, it is possible to bring the first and second pressure rollers 7 and 9 close to the process, quickly and directly in any position to the tube 2 and to each other on the basis of sensed by the continuous tube 2 values, whereby deviations in the Geometry of the tube can be compensated. The tube quality is thereby significantly improved.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

11
RohrschweißvorrichtungPipe welder
22
Rohrpipe
33
Längsachselongitudinal axis
44
Nahtstellejoin
55
Grundplattebaseplate
66
erster Schlittenfirst sled
77
erste Druckrollefirst pressure roller
88th
zweiter Schlittensecond sled
99
zweite Druckrollesecond pressure roller
1010
Achse der ersten Druckrolle 7Axle of the first pressure roller 7
1111
Achse der zweiten Druckrolle 9Axle of the second pressure roller 9
1212
weitere Druckrolleanother pressure roller
1313
weitere Druckrolleanother pressure roller
1414
Achse der weiteren Druckrolle 12Axis of the further pressure roller 12
1515
Achse der weiteren Druckrolle 13Axis of the further pressure roller 13
1616
horizontale Führunghorizontal leadership
1717
vertikale Führungvertical guidance
1818
horizontale Führunghorizontal leadership
1919
vertikale Führungvertical guidance
2020
Linearaktuator (Gewindespindel-Mutter-System)Linear Actuator (threaded spindle nut system)
2121
Linearaktuator (Gewindespindel-Mutter-System)Linear Actuator (threaded spindle nut system)
2222
Linearaktuator (Gewindespindel-Mutter-System)Linear Actuator (threaded spindle nut system)
2323
Motorengine
2424
Getriebetransmission
2525
Getriebetransmission
2626
Kupplungclutch
2727
Einstell- und Arretiermittel (Keil)Adjusting and locking means (wedge)
2828
Verschiebemitteldisplacement means
αα
Winkelangle

Claims (5)

  1. A pipe welding apparatus (1) for welding a pipe (2) shaped out of a flat metal strip on the resulting seam (4), comprising a base plate (5), a first carriage (6) that is arranged such that it can be moved relative to the base plate (5) in a plane that lies perpendicular to the longitudinal axis (3) of the pipe (2), wherein a first pressure roller (7) is rotatably arranged on the first carriage (6) and guides the metal strip shaped into the tube (2) in the vicinity of the seam (4), and a second carriage (8) that is arranged such that it can be moved relative to the first carriage (6) in a plane that lies perpendicular to the longitudinal axis (3) of the pipe (2), wherein a second pressure roller (9) is rotatably arranged on the second carriage (8) and guides the metal strip shaped into the pipe (2) in the vicinity of the seam (4),
    characterized in
    that at least one horizontal guide (18) and at least one vertical guide (19) are assigned to the first carriage (6) and to the second carriage (8).
  2. The pipe welding apparatus according to Claim 1,
    characterized in
    that two parallel threaded spindle/nut systems (21) are provided for the vertical adjustment of the first carriage (6), wherein the drive of said threaded spindle/nut systems is realized with two gear mechanisms (24, 25) that are driven by a common motor (23).
  3. The pipe welding apparatus according to Claim 1 or 2,
    characterized in
    that position adjusting and locking means (27) are arranged between the base plate (5) and the first carriage (6) and/or between the first carriage (6) and the second carriage (8).
  4. The pipe welding apparatus according to Claim 3,
    characterized in
    that position adjusting and locking means (27) are arranged between the first carriage (6) and the second carriage (8) only, wherein said position adjusting and locking means adjust and fix the positions of both carriages (6, 8) relative to one another in the vertical direction.
  5. The pipe welding apparatus according to Claim 3 or 4,
    characterized in
    adjusting and locking means (27) in the form of an adjustable wedge.
EP02020730A 2001-10-31 2002-09-14 Tube welding device Expired - Lifetime EP1308222B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10153688 2001-10-31
DE10153688A DE10153688C1 (en) 2001-10-31 2001-10-31 Pipe welding machine has fixed base plate with carriages supporting pressure rollers to guide metal pipe to forming and welding station

Publications (3)

Publication Number Publication Date
EP1308222A2 EP1308222A2 (en) 2003-05-07
EP1308222A3 EP1308222A3 (en) 2004-08-11
EP1308222B1 true EP1308222B1 (en) 2007-08-01

Family

ID=7704299

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02020730A Expired - Lifetime EP1308222B1 (en) 2001-10-31 2002-09-14 Tube welding device

Country Status (4)

Country Link
EP (1) EP1308222B1 (en)
AT (1) ATE368535T1 (en)
DE (2) DE10153688C1 (en)
ES (1) ES2289036T3 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1289814B (en) * 1969-02-27
DE1923241A1 (en) * 1969-05-07 1970-11-19 Demag Ag Device for continuous longitudinal seam welding of pipes
FR2460745A1 (en) * 1979-07-06 1981-01-30 Egimot Forging machine for mfg. tube with longitudinal seam weld - where forging rolls exert uniform pressure when squeezing the tube to make the weld
DE3212365C2 (en) * 1982-03-31 1984-06-07 Mannesmann AG, 4000 Düsseldorf Welding roller block for high-frequency welding of pipes
JPS59199113A (en) * 1983-04-26 1984-11-12 Mitsubishi Heavy Ind Ltd Squeezing-roll device
JPS60231526A (en) * 1984-05-01 1985-11-18 Nippon Steel Corp Forming of electric welded pipe

Also Published As

Publication number Publication date
DE10153688C1 (en) 2003-04-10
EP1308222A3 (en) 2004-08-11
ATE368535T1 (en) 2007-08-15
EP1308222A2 (en) 2003-05-07
ES2289036T3 (en) 2008-02-01
DE50210586D1 (en) 2007-09-13

Similar Documents

Publication Publication Date Title
EP0299358B1 (en) Device for continuous welding of strips and/or sheet metal
DE3534428C2 (en)
DE3529160A1 (en) MOLD ROLLING DEVICE
EP1508428A1 (en) Device for welding flat plastic materials
DE10058367B4 (en) Rolling device with clamping means for gripping a steel strip
DE19849306C2 (en) Device for sheathing workpieces
EP0701878A1 (en) Device and method for manufacturing of tubes
DE10223821A1 (en) welding gun
DE2745389C2 (en) Method and device for the production of multilayer screw sutures
DE3618701A1 (en) METHOD AND DEVICE FOR COLD FORMING PROFILES FROM IRON AND NON-FERROUS METALS
DE102016116159B4 (en) Method and device for bending strand-like workpieces
EP1308222B1 (en) Tube welding device
EP0481323B1 (en) Method for feeding a production machine with a precision centering and apparatus therefor
EP1985387A1 (en) Profiling machine with several successive forming stations and stand for such a profiling machine
DE4403339A1 (en) Apparatus for the final shaping of a tube produced by electrical resistance welding
EP1316371B1 (en) Welding device for tubes
EP0175886A1 (en) Method and arrangement for welding together the ends of rolled strips of finite lengths to form a strip of an infinite length during further processing of the strip
EP1048374B1 (en) Spring coiling arrangement, in particular for spring coiling machines
EP0429815B1 (en) Device for forming of a flange or similar, in particular at the end of a thin walled metalpipe
DE3152679C2 (en) Plant for the production of mints from multi-layer high pressure vessels
DE3420075A1 (en) Apparatus for transferring workpieces between a plurality of stations in a pressing system
EP0235721B1 (en) Method and device for the fabrication of welding seams with the help of a seam welding machine
WO2002034449A1 (en) Device and method for machining workpieces
DE102012107451A1 (en) Roll seam welding apparatus, useful for producing profile component e.g. endless profile, includes welding unit having pair of roll-shaped welding electrodes provided for welding components, and movement mechanism coupled to welding unit
EP2251112B1 (en) Profiling machine and method for longitudinal forming of a metal band or starting profile into a profile or tube

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20050204

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

GRAC Information related to communication of intention to grant a patent modified

Free format text: ORIGINAL CODE: EPIDOSCIGR1

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: SCHMAUDER & PARTNER AG PATENTANWALTSBUERO

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 50210586

Country of ref document: DE

Date of ref document: 20070913

Kind code of ref document: P

REG Reference to a national code

Ref country code: GR

Ref legal event code: EP

Ref document number: 20070403047

Country of ref document: GR

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20071115

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20071101

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070801

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2289036

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

BERE Be: lapsed

Owner name: SMS MEER G.M.B.H.

Effective date: 20070930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070930

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070801

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080102

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070801

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070801

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070801

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20071101

26N No opposition filed

Effective date: 20080506

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070801

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070801

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Free format text: SCHMAUDER & PARTNER AG PATENT- UND MARKENANWAELTE VSP;ZWAENGIWEG 7;8038 ZUERICH (CH)

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070914

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070801

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 50210586

Country of ref document: DE

Representative=s name: HEMMERICH & KOLLEGEN, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 50210586

Country of ref document: DE

Owner name: SMS GROUP GMBH, DE

Free format text: FORMER OWNER: SMS MEER GMBH, 41069 MOENCHENGLADBACH, DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20160920

Year of fee payment: 15

Ref country code: DE

Payment date: 20160921

Year of fee payment: 15

Ref country code: GB

Payment date: 20160920

Year of fee payment: 15

Ref country code: FI

Payment date: 20160913

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20160921

Year of fee payment: 15

Ref country code: GR

Payment date: 20160921

Year of fee payment: 15

Ref country code: AT

Payment date: 20160921

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20160916

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20160922

Year of fee payment: 15

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50210586

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170914

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 368535

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170914

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20170914

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20180531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170930

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170914

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170930

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180404

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170914

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170914

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180403

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171002

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20181019

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170915